期刊
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
卷 31, 期 7, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218127421300196
关键词
Network; symmetry; balanced coloring; quotient network; rivalry; decision making; bifurcation
The paper investigates the classification and impact of balanced colorings of networks on synchronization patterns, analyzing balanced colorings of two types of networks and providing examples of exotic colorings. By studying the balanced colorings of different types of networks, it explores their effects on the existence and stability of branches for model ODEs.
Balanced colorings of networks classify robust synchrony patterns - those that are defined by subspaces that are flow-invariant for all admissible ODEs. In symmetric networks, the obvious balanced colorings are orbit colorings, where colors correspond to orbits of a subgroup of the symmetry group. All other balanced colorings are said to be exotic. We analyze balanced colorings for two closely related types of network encountered in applications: trained Wilson networks, which occur in models of binocular rivalry, and opinion networks, which occur in models of decision making. We give two examples of exotic colorings which apply to both types of network, and prove that Wilson networks with at most two learned patterns have no exotic colorings. We discuss in general terms how exotic colorings affect the existence and stability of branches for local bifurcations of the corresponding model ODEs, both to equilibria and to periodic states.
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